73
[RouterD] acl number 2000
[RouterD-acl-basic-2000] rule permit source 232.1.1.0 0.0.0.255
[RouterD-acl-basic-2000] quit
[RouterD] pim
[RouterD-pim] ssm-policy 2000
[RouterD-pim] quit
# Configure the SSM group range on Router A, Router B, and Router C in the same way Router D
is configured. (Details not shown.)
6. Configure IGMP SSM mappings on Router D.
[RouterD] igmp
[RouterD-igmp] ssm-mapping 133.133.1.1 2000
[RouterD-igmp] ssm-mapping 133.133.3.1 2000
[RouterD-igmp] quit
Verifying the configuration
# On Router D, display IGMP SSM mappings for multicast group 232.1.1.1 on the public network.
[RouterD] display igmp ssm-mapping 232.1.1.1
Group: 232.1.1.1
Source list:
133.133.1.1
133.133.3.1
# Display information about the multicast groups created based on the configured IGMP SSM mappings
on the public network.
[RouterD] display igmp group
IGMP groups in total: 1
GigabitEthernet2/1/1(133.133.4.2):
IGMP groups reported in total: 1
Group address Last reporter Uptime Expires
232.1.1.1 133.133.4.1 00:02:04 off
# Display PIM routing table information on the public network.
[RouterD] display pim routing-table
Total 0 (*, G) entry; 2 (S, G) entry
(133.133.1.1, 232.1.1.1)
RP: 192.168.4.1
Protocol: pim-ssm, Flag:
UpTime: 00:13:25
Upstream interface: GigabitEthernet2/1/3
Upstream neighbor: 192.168.4.2
RPF prime neighbor: 192.168.4.2
Downstream interface(s) information:
Total number of downstreams: 1
1: GigabitEthernet2/1/1
Protocol: igmp, UpTime: 00:13:25, Expires: -
(133.133.3.1, 232.1.1.1)
RP: 192.168.4.1
Protocol: pim-ssm, Flag:
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